Find comprehensive information on Large for Gestational Age (LGA) diagnosis, including clinical documentation, medical coding, ICD-10 codes for LGA newborns, fetal macrosomia, and neonatal care. Learn about risk factors, diagnosis criteria, management of LGA pregnancies, and potential complications for LGA babies. This resource provides guidance for healthcare professionals on proper coding and documentation for LGA, supporting accurate reporting and improved patient care.
Also known as
Slow fetal growth and fetal malnutrition
Includes codes for fetuses large or small for gestational age.
Maternal care for known or suspected
Includes abnormal fetal growth affecting management of mother.
Outcome of delivery
Could be used to record birth details including fetal size.
Follow this step-by-step guide to choose the correct ICD-10 code.
Is birth weight >90th percentile for gestational age?
Yes
Is maternal diabetes documented?
No
Do NOT code LGA. Review documentation for alternative diagnosis.
When to use each related code
| Description |
|---|
| Large for Gestational Age |
| Macrosomia |
| Fetal overgrowth |
Incorrectly documented or calculated gestational age can lead to misdiagnosis of LGA or SGA, impacting coding accuracy and reimbursement.
Lack of specific documentation clarifying if LGA is due to maternal conditions or fetal overgrowth affects code selection and clinical data analysis.
Discrepancies between ultrasound measurements, clinical findings, and physician documentation create coding ambiguity and potential compliance issues.
Patient presents with suspected Large for Gestational Age (LGA) fetus. Maternal history includes gestational diabetes mellitus (GDM) controlled with diet and exercise. Ultrasound measurements demonstrate estimated fetal weight (EFW) above the 90th percentile for gestational age, raising concern for fetal macrosomia. Fundal height measurement corresponds with the advanced gestational age estimate. Differential diagnoses considered include constitutionally large infant, inaccurate gestational dating, and other conditions associated with increased fetal growth such as Beckwith-Wiedemann syndrome. Plan includes serial ultrasounds to monitor fetal growth, close monitoring of maternal blood glucose levels, and counseling regarding potential delivery complications associated with LGA newborns such as shoulder dystocia, birth trauma, and neonatal hypoglycemia. Patient education provided regarding the importance of ongoing prenatal care, fetal surveillance, and potential need for induction of labor or cesarean delivery depending on fetal growth trajectory and maternal condition. ICD-10 code P08.1 (Fetus and newborn affected by maternal conditions that may be unrelated to present pregnancy) and O36.591 (Maternal care for disproportionate fetal growth and other fetal growth abnormalities, first trimester) are considered, with final coding dependent on delivery outcome. CPT codes for ultrasounds and other diagnostic procedures will be applied as appropriate. Continued surveillance and management are planned.